export rdlc into memoery

Dear Thanks for your support
this is my code to convert rdlc to pdf file
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privare void callreport()
{
string[] ReportDataSourecName = new string[4];
ReportDataSourecName[0] = "DataSet1";
ReportDataSourecName[1] = "DataSet2";
ReportDataSourecName[2] = "DataSet3";
ReportDataSourecName[3] = "Ds_Setting";
//**************
object[] objs = new object[4];
objs[0] = ((List<reportdatasource>)e.Result)[0].Value;
objs[1] = ((List<reportdatasource>)e.Result)[1].Value;
objs[2] = ((List<reportdatasource>)e.Result)[2].Value;
objs[3] = ((List<reportdatasource>)e.Result)[3].Value;
//**************
Guid _guid = Guid.NewGuid();
General_Cls.FillReport(reportViewer1, objs, "RptGetPurchaseOrder_ByOrderID", ReportDataSourecName);
General_Cls.CreatePdfFile(reportViewer1, General_Cls.TempPath + _guid.ToString() + ".pdf");
System.Diagnostics.Process.Start(General_Cls.TempPath + _guid.ToString() + ".pdf");
}
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public static void FillReport(ReportViewer reportViewer1, object[] obj, string ReportName, string[] ReportDataSourecName)
{
reportViewer1.LocalReport.DataSources.Clear();
int _len = obj.Length;
Microsoft.Reporting.WinForms.ReportDataSource rds = null;
for (int x = 0; x <= obj.Length - 1; x++)
{
rds = new Microsoft.Reporting.WinForms.ReportDataSource();
rds.Name = ReportDataSourecName[x];
rds.Value = obj[x];
reportViewer1.LocalReport.DataSources.Add(rds);
}
reportViewer1.LocalReport.ReportEmbeddedResource = "ERPSystem.Reports." + ReportName + ".rdlc";
reportViewer1.RefreshReport();
}
--******************************************
public static void CreatePdfFile(ReportViewer Rv)
{
try
{
Warning[] warnings;
string[] streamids;
string mimeType;
string encoding;
string filenameExtension;
byte[] bytes = Rv.LocalReport.Render("PDF", null, out mimeType, out encoding, out filenameExtension, out streamids, out warnings);
using (FileStream fs = new FileStream(@"c:\Rpt.pdf", FileMode.Create))
{
fs.Write(bytes, 0, bytes.Length);
}
}
catch (Exception ex)
{ throw new Exception(ex.Message); }
}

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